Radiation analysis won't show any visual Info?

Replies to This Discussion

Permalink Reply by Chris Mackey on March 2, 2015 at 3:56pm

Thomas,

I don't have time to check your file but, on a hunch, make sure that your input surfaces are facing the right direction.

-Chris

Permalink Reply by Thomas Savage on March 4, 2015 at 6:33am

Thanks Chris, my model was pretty messy (it was an import from Maya) so this definitely helped

Permalink Reply by Abraham Yezioro on March 2, 2015 at 10:28pm

Some issues there Thomas:

The more important is that you are missing the LB_selectSkyMtx component after the LB_genCumulativeSkyMtx. It's output (selectedSkyMtx) is the one that is supposed to be hooked to the radiationAnalysis.

The other one is that your file is is mm. I recommend to change units to meters. This is not critical, but still ...

Since i tried some things, i also exploded your original geometry, but thisprobably you don't need to do, but just in case ...

-A.

Permalink Reply by Thomas Savage on March 4, 2015 at 6:53am

Thanks Abraham

I was following an old tutorial where the selectedSkyMix wasn't used and this combined with changing the units made it work!

However The results seem a little random, see attached picture

Attachments:

• Radiation Analysis.jpg, 220 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on March 4, 2015 at 7:01am

Double check normal direction of the surfaces. At least for the roofs that should be the case. I would set the grid size to a very large number and run a number of test analysis to make sure normals are fine and then run the final one with a higher resolution.

Permalink Reply by Abraham Yezioro on March 4, 2015 at 7:44am

We crossed Mostapha,

This is for sure a normal issue, but ... your model is "not good". I exploded it some times but still is remains one object in Rhino. So i'm not sure how you can flip the normal on individual parts of your mesh.

I'm getting "better" results than you but they are some remaining surfaces that have inverted normal direction, so they are not well calculated. See image below.

Once in GH, the meshing size seems not affect the buildings. They are all triangulated (as they came from Rhino.

Attached the file i used with internalized geometry.

-A.

Attachments:

• EnvoirmoentalAnalysis_AY.gh, 454 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on March 4, 2015 at 8:41am

Hi Abraham, As far as I can see input geometries are meshes and that's why the grid looks like that. If you create the breps and mergeAllFaces it should change to a clean model.

Permalink Reply by Abraham Yezioro on March 4, 2015 at 9:38am

Hmmm ...

You mean something like this?

Not very clean but the grid changed.

-A.

Attachments:

• EnvoirmoentalAnalysis_AY.gh, 459 KB